Vote yes or Turkey for

op­po­si­tion hard­ens against the deal ahead of the De­cem­ber 11 vote.

One min­is­ter re­ferred to the pro­posal as “the Turkey deal for Christ­mas” be­cause it mir­rors Turkey’s re­la­tion­ship with the EU – stuck in its cus­toms union and un­able to make other trade deals with­out agree­ment from Brus­sels.

Mrs May yes­ter­day made it clear G20 sum­mit lead­ers in Ar­gentina were keen to do free trade deals.

She said: “That this deal sets us on a path for a brighter fu­ture has been af­firmed by the dis­cus­sions I have had in the past two days.

“Friends and part­ners were mak­ing it clear they are keen to sign and im­ple­ment am­bi­tious free trade agree­ments as soon as pos­si­ble.”

Mrs May also in­sisted her deal would al­low Bri­tain to join the Com­pre­hen­sive and Pro­gres­sive Agree­ment for Trans-Pa­cific Part­ner­ship and plans for a com­mon rule book